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Science China(Life Sciences) 2024年第6期67卷 1302-1304页

作者： Zhuo-Yu An xiao-Hui zhang Peking University People’s Hospital Peking University Institute of HematologyBeijing 100044China Collaborative Innovation Center of Hematology Peking UniversityBeijing 100044China Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation Beijing 100044China National Clinical Research Center for Hematologic Disease Beijing 100044China

Allogeneic hematopoietic stem cell transplantation(allo-HSCT)is an important medical development in treating hematological ***,the risk of acute graft-versus-host disease(a GVHD)severely limits its use.a GVHD is a sev... 详细信息

关键词： hematopoietic graft artificial

Enrichment and reconfiguration of titanium-bearing phase in vortex smelting reduction process of vanadium-titanium magnetite

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Journal of Iron and Steel Research International 2024年第7期31卷 1582-1589页

作者： yong-chao Han Zhi-he Dou Rui zhang Ting-an zhang Shuai Fang Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Shenyang 110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

To comprehensively utilize the low-iron high-vanadium-titanium magnetite,a new method of vortex smelting reduction of vanadium-titanium magnetite was proposed,and the enrichment and reconstitution regularity of Ti-bearing phases in the slag was investigated through X-ray fluorescence spectrometry,X-ray photoelectron spectroscopy,X-ray diffraction analysis,and optical *** phase diagram revealed that the preferential crystallization of MgTi_(2)O_(5) can be achieved by adjusting the CaO,MgO,and TiO_(2) contents of *** predominant Ti-bearing phases in the slag obtained from the reduction process are MgxTi_(3_x)O_(5)(0≤x≤1)and CaTiO_(3).FeTiO_(3) is present at carbon-iron ratio(CR)=1.3,while MgTi_(2)O4 and TiC are formed at CR=*** enrichment of TiO_(2) in the slag increases first and then decreases as the CR increases,and at CR=1.1,the enrichment of TiO_(2) in the slag reaches 51.3 wt.%.Additionally,the concentrations of MgxTi_(3_x)O_(5)(0≤x≤1)and CaTiO_(3) in the slag,along with the grain width of MgxTi_(3_x)O_(5)(0≤x≤1),decrease with the increase in CR.

关键词： Vanadium-titanium magnetite Vortex smelting reduction Phase reconfiguration TiO_(2)enrichment

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人类遗传研究中的惠益分享问题探析

中国青年政治学院学报 2010年第6期29卷 83-89页

作者：张小勇中国青年政治学院法律系北京100089

人类遗传研究中的惠益分享被看作是解决人类遗传研究中所产生的研究成果的分配以及实现公平和正义要求等问题的重要途径。一些重要的国际法律文件和伦理准则从不同的角度以不同的方式对此做出了规范和指导。我国立法机关应当以法律的形... 详细信息

人类遗传研究中的惠益分享被看作是解决人类遗传研究中所产生的研究成果的分配以及实现公平和正义要求等问题的重要途径。一些重要的国际法律文件和伦理准则从不同的角度以不同的方式对此做出了规范和指导。我国立法机关应当以法律的形式明确规定惠益分享的问题。

关键词：人类遗传资源人类遗传研究惠益分享

Preparation of ^(67)Ga-EDTMP and its biodistribution studies

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Nuclear Science and Techniques 2003年第4期14卷 249-252页

作者： LI Qing-Nuan, zhang xiao-Dong, zhang yong-Ping, LI Wen-Xin (Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Shanghai 201800) Shanghai Institute of Applied Physics the Chinese Academy of Sciences 上海 201800

67Ga-EDTMP was synthesized in a single step by adding 67GaCl3 to EDTMP solution. Dependences ofthe radiolabeling yield of 67Ga-EDTMP on EDTMP concentration, pH and reaction time were examined. Under theoptimum conditions, the radiolabeling yield of 67Ga-EDTMP was more than 97%. A biodistribution experiment inmice showed that 67Ga-EDTMP was mainly absorbed by skeleton and reached 13.25% at 0.5 h after injecting, thenkept a high level in 72 h with a maximum value of 16.82% at 48 h. The results suggest that 67Ga-EDTMP might be apotential bone pain palliation radiopharmaceutical due to its high skeletal uptake, rapid blood clearance and relativelylow soft-tissue absorption. But further work must be done to determine whether 67Ga-EDTMP is useful in thetreatment of painful osseous metastases.

关键词：镓放射性同位素示踪核医疗学疾病诊断疾病治疗

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论遗传资源的获取和惠益分享的产生

中国青年政治学院学报 2007年第2期26卷 78-83页

作者：张小勇中国青年政治学院法律系北京100089

遗传资源是对人类具有实际或潜在用途或价值的一类重要的生物资源,遗传资源的获取问题经历了从自由获取向限制获取的转变过程。《生物多样性公约》的通过,标志着遗传资源的获取和惠益分享国际法律规范的正式确立,而《粮食和农业植物遗... 详细信息

遗传资源是对人类具有实际或潜在用途或价值的一类重要的生物资源,遗传资源的获取问题经历了从自由获取向限制获取的转变过程。《生物多样性公约》的通过,标志着遗传资源的获取和惠益分享国际法律规范的正式确立,而《粮食和农业植物遗传资源国际条约》则针对粮食和农业植物遗传资源的特殊性质建立了粮食和农业植物遗传资源的获取和惠益分享多边系统。

关键词：遗传资源《生物多样性公约》《粮食和农业植物遗传资源国际条约》

Data driving design of high-entropy alloys for lightweight and dynamic applications

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 10-24页

作者： Kaixuan Cui Junwei Qiao Peter KLiaw yong zhang State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Department of Materials Science and Engineering University of TennesseeKnoxville TN 37996USA

The topic of high-entropy alloys is one of the focus for both physics and materials ***-entropy alloys were usually defined as solid solution alloys,while the solid solution is different from the traditional terminal solid solution,because the solid solution without solvent element is the dominant *** discovery of high-entropy alloys greatly extended the composition space and the possibility of creating unique micro-and nano-level structures,which can meet the demands of lightweight and dynamic *** relationship between the phases and the parameters for the high-entropy alloys is rather *** data driving design can screen the specific high-entropy *** correlation between the composition and properties of highentropy alloys can be discovered by material genetic engineering and data science.

关键词： phase-formation rules materials genetic engineering lightweight high-entropy alloys dynamic properties

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我国遗传资源的获取和惠益分享立法研究

法律科学（西北政法大学学报） 2007年第1期25卷 142-157页

作者：张小勇中国青年政治学院法律系北京100089

当前,我国遗传资源流失的问题非常严重,现有的法律存在较多的缺陷,无法有效阻止遗传资源的流失。因此,我国有必要遵照《生物多样性公约》的要求建立遗传资源的获取和惠益分享法律制度。我国应当采纳单独或专门立法的模式,未来立法应包... 详细信息

当前,我国遗传资源流失的问题非常严重,现有的法律存在较多的缺陷,无法有效阻止遗传资源的流失。因此,我国有必要遵照《生物多样性公约》的要求建立遗传资源的获取和惠益分享法律制度。我国应当采纳单独或专门立法的模式,未来立法应包括目标和原则、适用范围、国家主管部门、获取程序、事先知情同意和共同商定条件、惠益分享和监测机制等七个方面的核心内容。

关键词：遗传资源获取和惠益分享知识产权法律意识

How the enhanced East Asian summer monsoon regulates total gross primary production in eastern China

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Advances in Climate Change Research 2024年第2期15卷 244-252页

作者： Ming-Yu HAN yong zhang Jing PENG China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China China Meteorological Administration Institute for Development and Programme Design Beijing 100081China CAS Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of Sciences(CAS)Beijing 100029China

Recognizing the relationship between gross primary production(GPP)and precipitation in eastern China,the East Asian Summer Monsoon(EASM)plays a crucial role in shaping *** confirmation of the strong link between EASM and GPP,there remains a notable research gap in understanding the specific impact of the EASM on GPP in different regions of eastern *** we used simulations from Trends in Net Land-Atmosphere Carbon Exchanges(TRENDY)models from 1951 to 2010 and divided eastern China into five subregions for the *** also used the New East Asian Summer Monsoon Index(NEWI)as a quantitative metric to distinguish between periods of strong and weak *** on this,this study aims to investigate the response of GPP in different subregions of eastern ***,under strengthened EASM years(1954,1957,1965,1969,1977,1980,1983,1987,1993 and 1998),East China experienced the most pronounced increase in GPP at 12±21(mean±1 sigma)gC m^(-2) mon^(-1) compared to the weak EASM years(1958,1961,1972,1973,1978,1981,1985,1994,1997 and 2004).In contrast,Southwest China showed a decline in GPP at-4±10 gC m^(-2) mon^(-1).Moreover,GPP also increased in Northeast and North China when EASM strengthened,while South China showed a decline in *** indicated that GPP changed with monsoon *** to the mechanism analysis,during strong EASM,there was intense moisture convergence through alterations in the atmospheric circulation field over East China and abundant precipitation,which further contributed to the increase in *** solar radiation in Southwest China decreased with EASM enhancement,which suppressed GPP and hindered vegetation ***,the results highlight the importance of accurately predicting the impact of different EASM intensities of regional carbon fluxes.

关键词： Gross primary production Surface air temperature Precipitation Solar radiation Eastern China Carbon cycle

Preoperative neutrophil-to-lymphocyte ratio predicts symptomatic anastomotic leakage in elderly colon cancer patients: Multicenter propensity score-matched analysis

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 438-450页

作者： Chao-Yang Wang xiao-Long Li xiao-Long Ma Xiong-Fei Yang yong-yong Liu yong-Jiang Yu Department of Clinical Medicine The First Clinical Medical College of Lanzhou UniversityLanzhou 730000Gansu ProvinceChina Department of Gastrointestinal Surgery First Hospital of Lanzhou UniversityLanzhou 730000Gansu ProvinceChina Department of Clinical Medicine Gansu University of Chinese MedicineLanzhou 730000Gansu ProvinceChina Department of Anorectology Gansu Provincial People’s HospitalLanzhou 730000Gansu ProvinceChina Department of General Surgery The Second Hospital Affiliated to Lanzhou UniversityLanzhou 730000Gansu ProvinceChina

BACKGROUND The neutrophil-to-lymphocyte ratio(NLR),a composite inflammatory biomarker,is associated with the prognosis in patients with colorectal ***,whether the NLR can be used as a predictor of symptomatic postoperative ana-stomotic leakage(AL)in elderly patients with colon cancer is *** To assess the role of the NLR in predicting the occurrence of symptomatic AL after surgery in elderly patients with colon *** Data from elderly colon cancer patients who underwent elective radical colectomy with anastomosis at three centers between 2018 and 2022 were retrospectively *** operating characteristic curve analysis was performed to determine the best predictive cutoff value for the ***-two covariates were matched using a 1:1 propensity score matching method,and univariate and multivariate logistic regression analyses were used to determine risk factors for the development of postoperative *** Of the 577 patients included,36(6.2%)had symptomatic *** optimal cutoff value of the NLR for predicting AL was *** propensity score matching,the incidence of AL was significantly greater in the≥2.66 NLR subgroup than in the<2.66 NLR subgroup(11.5%vs 2.5%;P=0.012).Univariate logistic regression analysis revealed statistically significant correlations between blood transfusion intraoperatively and within 2 d postoper-atively,preoperative albumin concentration,preoperative prognostic nutritional index,and preoperative NLR and AL occurrence(P<0.05);multivariate logistic regression analysis revealed that an NLR≥2.66[odds ratio(OR)=5.51;95%confidence interval(CI):1.50-20.26;P=0.010]and blood transfusion intraoperatively and within 2 d postoperatively(OR=2.52;95%CI:0.88-7.25;P=0.049)were risk factors for the occurrence of symptomatic *** A preoperative NLR≥2.66 and blood transfusion intraoperatively and within 2 d postoperatively are associated with a higher incidence of postoperative symptomatic AL in elderly

关键词： Colon cancer Anastomotic leak Neutrophil-to-lymphocyte ratio Propensity score-matched

IR-YOLO: Real-Time Infrared Vehicle and Pedestrian Detection

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Computers, Materials & Continua 2024年第2期78卷 2667-2687页

作者： xiao Luo Hao Zhu Zhenli zhang Department of Electrical Engineering and Automation Jiangxi University of Science and TechnologyGanzhou341000China Jiangxi Provincial Key Laboratory of Maglev Technology Ganzhou341000China Graduate School of Information Production and SystemsWaseda UniversityKitakyushu-shiFukuoka808-0135Japan

Road traffic safety can decrease when drivers drive in a low-visibility *** application of visual perception technology to detect vehicles and pedestrians in infrared images proves to be an effective means of reducing the risk of *** tackle the challenges posed by the low recognition accuracy and the substan-tial computational burden associated with current infrared pedestrian-vehicle detection methods,an infrared pedestrian-vehicle detection method A proposal is presented,based on an enhanced version of You Only Look Once version 5(YOLOv5).First,A head specifically designed for detecting small targets has been integrated into the model to make full use of shallow feature information to enhance the accuracy in detecting small ***,the Focal Generalized Intersection over Union(GIoU)is employed as an alternative to the original loss function to address issues related to target overlap and category ***,the distribution shift convolution optimization feature extraction operator is used to alleviate the computational burden of the model without significantly compromising detection *** test results of the improved algorithm show that its average accuracy(mAP)reaches 90.1%.Specifically,the Giga Floating Point Operations Per second(GFLOPs)of the improved algorithm is only *** contrast,the improved algorithms outperformed the other algorithms on similar GFLOPs,such as YOLOv6n(11.9),YOLOv8n(8.7),YOLOv7t(13.2)and YOLOv5s(16.0).The mAPs that are 4.4%,3%,3.5%,and 1.7%greater than those of these algorithms show that the improved algorithm achieves higher accuracy in target detection tasks under similar computational resource *** the other hand,compared with other algorithms such as YOLOv8l(91.1%),YOLOv6l(89.5%),YOLOv7(90.8%),and YOLOv3(90.1%),the improved algorithm needs only 5.5%,2.3%,8.6%,and 2.3%,respectively,of the *** improved algorithm has shown significant advancements in balancing accuracy and computati

关键词： Traffic safety infrared image pedestrians and vehicles focal GIoU distributed shift convolution